Leviton 1286 W 20 Amp 120 277 Volt Toggle Double Pole AC ...Leviton 1286 W 20 Amp 120 277 Volt Toggle Double Pole AC Quiet Switch, White Wall Light Switches Leviton 1288 I 30 Amp 120 277 Volt Toggle Double Pole AC ...Leviton 1288 I 30 Amp 120 277 Volt Toggle Double Pole AC Quiet Switch, Ivory Wall Light Switches Wiring Electrical Code Phoenix, AZ | Electrician Phoenix(E) Appliances. Appliances that have a single pole switch or a single pole overcurrent device in the line or any line connected screw shell lampholders, and that are to be connected by (1) a permanent wiring method or (2) field installed attachment plugs and cords with three or more wires (including the equipment grounding conductor), shall have means to identify the terminal for the grounded ...Fundamentals of Electrical Power MeasurementMeasurement of Power Single Phase Three Wire System (Split Phase) The voltage and current detected by the METERS are the voltage and current applied directly to the Load. The indication on EACH METER is the power being delivered by the LINE to which the meter is connected.